Pendulum-scale



(No Model.) v

' G; P. BATT.

PendulumSoale,

8 0 8 My 8 mp 2 1%, m e D d 6 J m I 1. m 4 I. a 1. P 1 w r a: w

WITNESSES: v MJW ATTORNEYS.

MFUERS, PHOT0 L|THOGRAPHR. WASHiNGTON. D C.

UNITED STATES PATENT OFFICE.

CHARLES F. BATT, OF PH(ENIXVILLE, PENNSYLVANIA.

PENDULUM-SCALE.

SPECIFICATION forming part of Letters Patent No. 235,982, dated December28, 1880.

Application filed May :28, 1880.

'10 all whom it may concern Be it known that 1, CHARLES F. BATT, ofPhoenixville, in the county of Chester and State of Pennsylvania, haveinvented a new and useful Improvement in \Veighing-Scales, of which thefollowing is a specification.

My invention relates to that class of weighing-scales in which areincluded such as are commonly known as bent-lever scales.

The invention consists in a novel combination and arrangement withrelation to each other of a pair of pivoted weighted levers, a pair ofconnecting-bars, and a vertically-operating scale-beam and indicator, ashereinafter more particularly described and set forth.

In the accompanying drawings, Figure 1 is an elevation of a scaleconstructed according to my invention. Figs. 2 and 3 are viewshereinafter referred to.

Similar letters of reference indicate corresponding parts.

A represents a post or standard, the upper portion of which is curvedforward and carries a frame or bracket, B, having two branches extendingvertically downward. At the lower ends of these two branches are pivotedtwo weighted levers, D D, the upper ends of which are tapered andslightly curved. Each of the levers D may have its weight permanentlyfixed to it, or said weight may be adjustable, in order to increase ordiminish the leverage.

In Fig. 2 is shown one mode of adjusting the weight in order to regulatethe leverage. The weight (I is arranged to slide on thelever D, and isheld at the desired point by a pin passing through it and through a holein the lever.

Another mode of adjusting the weight is shown in Fig. 3. The weight clis made in two (No model.)

semicircular halves, which are hinged together at the periphery, so thatone-halfmay be swung downward to the position shown in dotted lines, soas to practically lengthen the lever, and thus increase the leverage.

The tapered upper ends of the levers D D are connected with thescale-beam by means of the connecting-bars E E. The outer ends of thesebars E are hook-shaped, and engage with the points of the ends of thelevers. The inner ends of the bars are pivoted to each other and to thescale-beam Gr, so as to occupya horizontal position when the scale isnot in use.

The scale-beam G works in a rectilineal vertical direction. At its lowerend it carries the pan H, and its upper ends acts as theindicator, beingarranged to rise and fall in front of a scale, J, marked on the face ofthe frame or bracket B. A weight placed in the pan H depresses the beamG in a vertical direction, causing its upper end to indicate the weighton the scale J, and causing the bars E to pull on the upper ends of thelevers D and throw their weighted lower ends outward to the po sitionsshown in dotted lines in Fig. 1.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- In a weighing-scale, the combination, with thehook-bar E suspending the scale, of levers D on fixed centers, andhaving a projection that forms a bearing for the ends of bookbars, asshown and described.

CHARLES FRANKLIN BATT.

Witnesses LEVI T. BATT, Z. AGKER.

